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Atoms and Periodic Table Review Flashcards | StudBud
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Atoms and Periodic Table Review
Atoms and Periodic Table Review
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1
What determines what element an atom is?
atomic mass
# of neutrons
electron charge
# of protons
2
The majority of the human body is made of which type of element?
synthetic
nonmetal
metalloid
metal
3
Sodium (Na) has an atomic number of 11 and atomic mass of 23. How many neutrons does it have?
11
23
34
12
4
A Lewis dot diagram is used to show what?
valence electrons
structure of nucleus
energy levels
total electrons
5
Increasing what would increase the rate of a chemical reaction?
concentration
surface area
temperature
all of these
6
What never changes during a physical change?
temperature
volume
state of matter
total mass
7
Which radioactive decay is high energy, but does not change it to a new element?
alpha
gamma
omega
beta
8
Which is NOT a sign of a chemical change?
color change
bubbles
change of state
energy change
9
Which category of elements are good conductors, malleable, ductile, and solid?
Metalloids
Metals
Hologens
Nonmetals
10
What kind of radioactive decay is made of 2 protons & 2 neutrons, changing it to a new element?
omega
beta
alpha
gama
11
Which particle has a mass of 1 and is positive
electron
quark
neutron
proton
12
A halogen is in what group on the periodic table?
1
15
18
17
